Download WAEC May/June App - Get all past questions and answers, 100% offline - 43208
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
  1. Home
  2. Classroom
  3. Chemistry
  4. JAMB 2012

Chemistry 2012 JAMB Past Questions

Clear Selections
Change Subject Post a Question Check Syllabus Study My Bookmarks Past Questions Videos Watch Video Lessons Download App

Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
Download WAEC May/June App - Get all past questions and answers, 100% offline - 43208
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
31
Commercial bleaching can be carried out using
  • A. sulphur (IV) oxide and ammonia
  • B. hydrogen sulphide and chlorine
  • C. chlorine and sulphur (IV) oxide
  • D. ammonia and chlorine
View Answer & Discuss (1) JAMB 2012
32
Mineral acids are usually added to commercial hydrogen peroxide to
  • A. oxidize it
  • B. decompose it
  • C. minimize its decomposition
  • D. reduce it to water and oxygen
View Answer & Discuss (2) JAMB 2012
33

Which of the following compounds will burn with a brick-red colour in a non-luminous Bunsen flame?

  • A. LiCI
  • B. NaCl
  • C. CaCl2
  • D. MgCl2
View Answer & Discuss (3) JAMB 2012
WAEC offline past questions - with all answers and explanations in one app - Download for free
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
34

The purest form of iron which contains only about 0.1% carbon is

  • A. pig iron
  • B. wrought iron
  • C. cast iron
  • D. iron pyrite
View Answer & Discuss (1) JAMB 2012
35
A common characteristic between zinc and the other transition elements is the ability to
  • A. have variable oxidation states
  • B. from complex ions
  • C. act as a catalyst
  • D. from coloured ions
View Answer & Discuss (1) JAMB 2012
Start a Free Practice Test
 
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
WAEC offline past questions - with all answers and explanations in one app - Download for free
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
Download WAEC May/June App - Get all past questions and answers, 100% offline - 43208